Electric mixer



FIG. 1 is front perspective view of an electric mixer illustrating my new design;

FIG. 2 a top perspective view thereof;

FIG. 3 is a front perspective view thereof with left container open;

FIG. 4 is a front perspective view thereof with both containers open;

FIG. 5 is a rear perspective view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings represent unclaimed subject matter. 

The ornamental design for an electric mixer, as shown and described. 